Car-wheel mold



(No Model.)

J. K. SAX. GAR WHEEL MOLD.

1 No. 496,100. Patented Apr. 25, 1893.

UNITED STATES PATENT OFFICE.

JOHN K. SAX, OF PITTSTON, PENNSYLVANIA.

CAR-WHEEL MOLD.

SPECIFICATION forming part of Letters Patent No. 496,100, dated April25, 1893.

' ApplicationfiledOctoher 28. 1891. Serial No. 410,062. (No model.)

State of Pennsylvania, have invented certain new and useful Improvementsin Molds for Making Oar-Vlheels; and I do hereby declare the followingto be a full, clear, and exact description of the invention, such aswill enable others skilled in the art to which it appertains to make anduse the same.

My invention relates to an improvement in molds for making car wheels,the object being to produce an improved mold for use in the process ofmanufacturing my improved car wheel and it consists in certain novelfeatures of construction and combinations and arrangements of parts ashereinafter set forth and pointed out in the claim.

In the accompanying drawings: Figure 1 is a plan View of the mold andFig. 2 is a vertical sectional view, a portion being in elevation.

C, D, represent the upper and lower sections respectively of the mold,which sections are properly formed to cast the tread and front and rearfaces of the rim. The mold is provided with a collapsible center E,composed of sections (Z, d, d, e, which are adapted to rest on aninwardly projecting flange e on the lower section D of the mold. Theadjacent ends of two of the sections cl of the collapsible center arebeveled and between these beveled ends, the similarly beveled section 9of a hook i, is adapted to pass, said hook being adapted to engage thesection e of the collapsible center and retain said collapsible centerin place. The shank h is provided near its outer end with a slotj forthe reception of a wedge-shaped key is for locking the hook. This moldis preferably covered on the inside with a coating of loam orblack-wash, or both, to prevent the metal that is poured into the moldfrom cutting or washing away any portion of the mold. The mold isprovided with a perforation, k, with which a cylinder Z is adapted tocommunicate. A plunger m is adapted to operate in the cylinder. A lever72 is connected at one end to a post or upright 0 and at a point betweenits ends to the plunger m. This lever may be operated in any suitablemanner to operate the plunger m to force the blow holes out of the mold.

Having fully described my invention, what I claim as new, and desire tosecure by Letters Patent, is- I In a mold for casting a car wheel rim ortire, the combination with the upper and lower sections, of acollapsible center, a perforated block projecting from one section ofthe mold, a hook adapted to engage one section of the collapsiblecenter, the shank of said hook being adapted to pass through saidperforated block and provided with a slot, and a Wedgeshaped key adaptedto pass through said slot, substantially as set forth.

In testimony whereof I have signed this specification in the presence oftwo subscriblVitnesses:

W. S. LACK, P. K. RICHARDS.

